JPH09505700A - 差動４周波数シフトキーイングを使用するデジタル通信装置 - Google Patents

差動４周波数シフトキーイングを使用するデジタル通信装置

Info

Publication number
JPH09505700A
JPH09505700A JP7512252A JP51225295A JPH09505700A JP H09505700 A JPH09505700 A JP H09505700A JP 7512252 A JP7512252 A JP 7512252A JP 51225295 A JP51225295 A JP 51225295A JP H09505700 A JPH09505700 A JP H09505700A
Authority
JP
Japan
Prior art keywords
signal
symbol
frequency
bit
differential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7512252A
Other languages
English (en)
Japanese (ja)
Inventor
レイノルズ サットン，ジェフ
グラウ，ジュアン，ジュニア
Original Assignee
プロキシム，インコーポレイティド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by プロキシム，インコーポレイティド filed Critical プロキシム，インコーポレイティド
Publication of JPH09505700A publication Critical patent/JPH09505700A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • H04B2001/71566—Tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)
JP7512252A 1993-10-15 1994-10-17 差動４周波数シフトキーイングを使用するデジタル通信装置 Pending JPH09505700A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/136,749 US5412687A (en) 1993-10-15 1993-10-15 Digital communications equipment using differential quaternary frequency shift keying
US08/136,749 1993-10-15
PCT/US1994/012184 WO1995010893A1 (en) 1993-10-15 1994-10-17 Digital communications equipment using differential quaternary frequency shift keying

Publications (1)

Publication Number Publication Date
JPH09505700A true JPH09505700A (ja) 1997-06-03

Family

ID=22474200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7512252A Pending JPH09505700A (ja) 1993-10-15 1994-10-17 差動４周波数シフトキーイングを使用するデジタル通信装置

Country Status (9)

Country Link
US (1) US5412687A (de)
EP (1) EP0723720B1 (de)
JP (1) JPH09505700A (de)
CN (1) CN1074215C (de)
AT (1) ATE212769T1 (de)
AU (1) AU681205B2 (de)
CA (1) CA2174142A1 (de)
DE (1) DE69429779T2 (de)
WO (1) WO1995010893A1 (de)

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Also Published As

Publication number Publication date
EP0723720A4 (de) 2000-07-05
ATE212769T1 (de) 2002-02-15
WO1995010893A1 (en) 1995-04-20
AU681205B2 (en) 1997-08-21
US5412687A (en) 1995-05-02
EP0723720B1 (de) 2002-01-30
EP0723720A1 (de) 1996-07-31
DE69429779D1 (de) 2002-03-14
AU8124394A (en) 1995-05-04
CN1138394A (zh) 1996-12-18
CA2174142A1 (en) 1995-04-20
DE69429779T2 (de) 2002-10-24
CN1074215C (zh) 2001-10-31

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